Water-cooled door.



H. P. PARROUK.

WATER COLBD DOOR.

APPLIUATION FILED JUNBe,191o.

Patented J an. 14, 1913.

2 SHEETS-SHEETI.

H. P. PARROCK.

WATER GOOLED DOOR.

APPLICATION FILED JUNE e. 1910.

1,059,229, Patented Jan. y14, 1913.

2 SHEETS-SHEET 2.

y 5,4 63am@ UniTED sr Ares snr nice. l

BARRY PRCIVAL IA-RCK, 0F BUFFALO. NEW YORK.

WATEB-COOLED- DUDE.

Specification of Letters Patent.

Patented aan. ia, isis.

Application inea June c, 191e. serial No. 565,241

nooK, a citizen of the United States, resid-- ing at Buffalo, inthe county of Erie and State of New York, have invented a new and useful Improvement in Water-Cooled Doors, of which the following is a specification.

This invention relates to that class of furnace doors which are subjected to high teinperatures and are made hollow for the circulation of cooling water.

The objects of the invention are to produce a water-cooled furnace door which can be readily and economically manufactured and which will be more durable in service and will withstand the high temperatures to which these doors are subjected for a longer time than furnace doors as heretofore constructed.

It is Well known in the art that a cast steel door is better able to withstand high temperatures and is superior in many ways to cast iron or wrought iron doors, but it is not practicable to make hollow steel doorsI in a single integral casting. since great diitlculty is experienced in removing the mold cores, owing to the high temperature ut which the steel is poured into .the molds.

Doors constructed in accorda-nce with this invention are composed of two parts, a hollow open-sided box-like body portion which is preferably made of cast steel, and a front or cover plate secured to the body portion and closing the open side thereof so that a chamber for the cooling water formed between these two parts. lVhen in use,the steel body portion of the door is exposed to the heat of the furnace, while the plate merely serres to confine the water within the door.

In the accompanying drawings. consisting of two sheets: Figure l is an elevation of the body portion of a door embodyingr the invention. Fig. 2 is `a central'vertical section of a complete door. Fig. 3 is au elevation of the front or cover plate on a reduced scale. Fig. 4 is an enlarged section of the joint between the body portion of the door and the cover plate. Fig. 5 is a. similar sectional view of a slightly modified forni ot' joint. Fig. 6 is an elevation of the body port-ion of a door of modilied construction. l Fig. 7 is a vertical section on line iva', Fig. Fig. 8 is :in enwith the cover removed. larged sectional View of an unfinished joint between the parts of the door shown in Figs. 6 and 7. Fig. 9 is a sectional view similar to Fig. 8, showing a finished joint-l y Like reference characters refer to like parts in the several figures.

The furnace door is composed of a shallow open-sided box-like body or casting A. and afront or cover plate B which is secured to the edge or sidewalls of the bodv and closes the open side thereof. l

Referring first to the construction shown in Figs. l-, the body portion A of the doorl is cast in one piece. andis provided with a rearwardly-projecting hollow marginal tiaiige o which serves to hold the re brick or other lining (not shown) for the door in place against the rear wall a of the door. The flange may have any suitable form adapted for retaining the lining in place, a bead a2 being shownl on the tlanfre in the drawings. C represents a tubu ar boss which forms the usual peep-hole which may be located in any convenient part of the door. The top, bottom, and side walls D of the body A are reduced in cross-section at their front edges, forming shoulders I ci against which the front plate B bears, and

marginal flanges d which surround the front plate and are bent` inwardly over the edges thereof to secure the front plate in place.` At the corners of the walls, portions of these fianges are omit-ted to facilitate the bending over of the tianges. A similar shoulder (Z2 and flange d are formed at the front end of the Walls of the peep-hole. The walls D preferably decrease in thickness or taper toward the front or open side of the body A in order to facilitate the cast ing of the body, and the boss C forming the peep-hole is'inade tapering for the same reason. l are standards or posts which projectl forwardly from the rear Wall a of the body andvwhosev outer ends c are re duced iii diameter. The body portion A of the door consists of a single casting of a soft grade of steel since this material is best adapted for the use to which these doors are subjected. The body shaped as described can be readily made of cast steel. The frontor cover-plate B of the door may be out oi stamped from a plate of metal land is made of proper size to be placed on the body portion it of the door between the flanges d aud to rest on the shoulders d. A. liolc f in the cover plate receives the reduced end 1of the boss C forming the peep'nole, so

the reduced ends ot' that the edges el" the hole frest on the shoulder d2 ol the.' oli the peep-hole. lloles j" f" 'are lso provided in. the Cover so located. and are of such size as to lit over the standards E. ln assembling the parts ol" this door, the edge portionsot the Walls D ol the body A of the door are lirst heated to a temperature at 1which the llanged portions can be bent over. The oever plate l is then placed into position on the shoulders d ot the body portion ot the door and the redueed ends ol the standards lil, which pass through. the holes f in the cover plate, are preferably ifirst riveted down Vto hold the plate in place. 'lhs llanffes d on the Walls l) and the llange d on the walls of the peep-hole are then bent over, by a press or by hammering, into position io press the plate firmly agaiiist the shoulders nl and d2, as shown in joints between the eover plate and the outer ed ol the turnedbver flanges may be calmed in the ordinary manner practiced in boiler making. lll' represents nipples or coni'ieetions l'or the Water eirenlating pipes, which. niay be located at any suitable part ol? Ythe body and lil represents the usual lit ing lues :tor raising the door.

Yn li: o, a slightly iuodilied construclion is shown in which a groove l is formed between the .flange d' and the shoulder al oli' the body portion il ot the door. Before placing the o plate B in position on the body portion oi? the door, this groove is lille vfilli a suitable cement, lor example, a el t steel rement, which will make the joint between the cover plate and the body portion of the door Water-tight.

ln the oonstruelion shown in Figs. (l, 7 and a short ,flange li is formed on the outer edges oll the Walls l) ol' the body. rllhe `width ot this flange beyond the shoulders may be only slightly greater than the thickness olf the oever plate. l similar flange 7a surrounds the outer portions of the Walls of the peep-hole. ll represents lugs or lips ivhieh project troni the llanges on the upper and lower walls ll of the door. ln assembling a door ol" this niodihcd Construction, the over plate is plafed in position on the bony portion ot the door. a'lter which the ends of the standards ll are riveted down and `the lips li are benl over to hold the dale leilfiporarily in position. The plate is ieu welded to 'the body portion ol3 the door soule suitable welding liaine or by electrio feldii the :spaee betvvm-n the plete and the langts being )reterably filled with roanne@ metal, indicated at M in Fig. 9. rlhis produces a very secure and Water-tight joint.

A door constructed as hereinbetore de scribed possesses all the strength, durability, and Wearing qualities of a door east in one integral casting, and in addition has the advantage that it consists of parts that can be easily made and assembled. lhe body portion of the door can be made ot cast steel, which metal is particularly well adapted for this use, and the usual ditlieulty of removing the core from a hollow east steel door is not experienced in the manufacture of this door, the hollow part of which is free from any obstructions which would tend to bring an unequal heating of the door and thus very materially reduce its life. rl`he eover plate, Which forms the outside portion of the door, is subjected to Very little wear or heat and Consequently can be inade of thin material, which decreases the Weight ol' the door.

l claim my invention:

l. A water-cooled door oon'iprising an integral cast steel body portion having a rear wall and foru'ardly-eXtending lop, bottoni and side walls provided with a marginal flange at the outer edges ot said Walls and forming a shoulder therewith, a rover plate which rests against said shoulder Within said flange to forni with said body portion a chamber lor the circulation ot water, and means tor holding said plate against said shoulder, substantially as set forth.

A Water-cooled door comprising an integral cast steel body portion having a rear wall`I a rearwardly-projeeting hollow niarginal flange, and top, bottom and side Walls which extend forwardly from said tlange beyond said rear Wall and are provided with a marginal flange at the outer edges oit said walls and forming a shoulder therewith, and a cover plate which is secured to said bod)v portion against said shoulder within said llange, substantially as set forth.

Il. il water-eooled door Comprising an integral east steel body portion having a rear 'all and forwardlyextending top, bottoni and side Walls provided iviti a marginal llange at the outer edges el' said `walls and forming a shoulder therewith, said body por tion having connections lo' water circulating pipes and an integral tubular boss eX- lending liorufardly from said rear Wall and l/'irovided with a marginal flange and a shoulder, and a cover plate which receives the flange of said boss and which rests against said shoulders on said Walls and boss to form with said body portion a Chaniher tor the circulation of water, and means l'or holding said plate against said shoulders, substantially as set forth.

4. A water-cooled door comprising an in tegral body portion having a rear Wall and torwardly extei'lding top, bottom and side tion of said flange being -aclaptcl to be walls lrm'llnl willl a marginal vflange at tlmx unter algen; of said walls and forming a slwnlller tllermvth, a cover plate which rests againstA Sacl shoulders within said 1,910.

flange to 'farm with said Walls a chamber 'LUY Pllfl l retain .Qall www' plaie in pogton agans l l l l I n im* the mrculatmn of Water, the outer por l llfluesses:

said shoulders, sulvslanla 1f as sel Tfoh. lvltnoas my l'ianfl, ilus L54; day of une F. E. Puocnxmv,

benl over the edges of the cover plaie to A- L. MCGEE. 

